Alienkid

Sentry Mode Engaged In multiplayer, defeat 150 enemies with the Heavy's Sentry Gun.

Ladies Man You convinced Mengyao to spill the beans on the mysterious Hyron Project.

Doomtrain Unlock Guardian Force Doomtrain

UFO Complete the PuPu side quest

With Practiced Bravado 100 Kills During Shootdodge

Camera Men Completed the men's portrait collection.

Regular soldier Complete the game on Marksman difficulty

TLAD: The Lost Boy Become leader of The Lost. (The Lost and Damned)

A TASTE FOR IT Get your first kill

Smile for the Camera Completed the women's portrait collection.

Saghassi Maniac Found all of Saghassi's Paintings in Hekseville.

Swiss Army Killer Kill an enemy in Ghost War as the Panther, Assault, Field Medic and Sharpshooter.

A Charlie Montague Game Prove you're a real gamer by winning Charlie's Wake Up Challenge, Reward Scheme, the Moxie, Haul-A-Quinn, and the Yerhva.

Obel Lake Secret Complete the Obel Lake side quest

Saghassi Fan Found all of Saghassi's Paintings in Jirga Para Lhao.

Ghost At The Feast Kill 3 targets at Aleksis' party without being seen. Leave Updaam satisfied, knowing you made the party a better place.

The Bird in the Sky Never get noticed by the helicopter

Hell on Wheels Complete 'Blood and Iron' on Veteran difficulty. (Solo only)

Golden Feather Complete Chapter 4 B-Side

Tour Guide Discovered all of the sites in Jirga Para Lhao.

T-Bone: Pest Control Complete Act 3

Tour Conductor Discovered all of the sites in Hekseville.

Dominion Wraith Flash Dominate 50 Uruks.

Up to the Challenge 1 Complete 10 challenges.

Heart of Darkness Find all 8 mysterious carillons.

Eddie Is Back Complete Eddie's Challenge

Mad Scientist Awarded for alchemizing 120 different items.

Location Scout Visit all Locations in Director Mode.

...The Harder They Fall Destroy every Surveillance Airship

Among the Stars Completed "Among the Stars"

Last Action Hero Help Garland King finally finish her picture

Campaign Silver Obtain 72 medals on the original Arkham City campaigns (as Batman)

Heart of the Mountain Collect the Crystal Heart in Chapter 8

Asari Ally ME1: Complete 5 missions with the asari squad member

We Will Survive Win 15 matches in Team Survivors.

Bronze Medalist Completed all challenge missions with bronze or better.

Parasite-Seeing In Shadows of Evil, kill 5 Parasites while riding on the train.

Sentimental Value You kept Megan's bracelet for yourself. Apparently, letting go really is the hardest part.

The Ice Witch Freeze 20 enemies while wearing Odette.

Clean-ish Hands Kill all Visionaries - and no Eternalists - in a single loop.

With Bells On Purchase all of Faith's upgrades

One-Winged Angel Defeat Sephiroth in the Platinum Match at Olympus Coliseum.

1000 Kills Kill 1000 enemies

Vive la révolution! Kill Lothar.

Undertaker In The Final Reich, kill the Bomber with the shovel.

Hang 'em High! Kill 30 enemies while they're suspended in the air with the grappling hook.

Lore Master Complete All Side Quests

Knowledge is Power Uncover the mysteries of the Lost Tomb of Otorongo

Gasoline Cowboy Rescue your allies with the Sherman while keeping your armor above 80% in Collateral Damage.

This Galaxy Ain't Big Enough… Completed "This Galaxy Ain't Big Enough…"